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Design and Development Air-Condition and Refrigeration System for Seed Storage |
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| รหัสดีโอไอ | |
| Creator | 1. Arnon Saicomfu 2. Wichai Opanukul 3. Tinnasit Kaisinburasak 4. Phitchayaphong Mueangmoon 5. Theerasak Komake 6. Bundit Jitjumnong 7. Kantima Thongsri 8. Nipapon Punnara 9. Danai Sarntoonpituk 10. Bantit Thongdang |
| Title | Design and Development Air-Condition and Refrigeration System for Seed Storage |
| Contributor | Department of Agriculture |
| Publisher | Department of Agriculture |
| Publication Year | 2560 |
| Journal Title | THAI AGRICULTURAL RESEARCH JOURNAL |
| Journal Vol. | 35 |
| Journal No. | 2 |
| Page no. | 136-150 |
| Keyword | refrigeration system, aircondition system, dehumidifying, seed |
| URL Website | http://at.doa.go.th/journal |
| Website title | THAI AGRICULTURAL RESEARCH JOURNAL |
| ISSN | 1258389 |
| Abstract | The purpose of this research was to design and develop air-condition andrefrigeration systems of seed storage, which reduce storage cost and maintain high qualityof seed. The refrigeration system could control temperature and relative humidity (RH),operated by condensing and heat up by hot gas from refrigerant for suitable environmentof seed storage. The size of cold storage room's prototype was 2.2 x 4.0 x 2.2 m (width xlength x height). Polyurethane foam panels (50 mm thickness) were used as wallinsulation. The cooling system consisted of R-22 refrigerant, 4 hp (380V/3Ph/50Hz)compressor motor with 5.85 kW cooling capacity. Fan of unit cooler had air mass flow rateat 0.6 kg.sec-1. The heating coil capacity 6 kW was installed for dehumidification. Thecoefficient of performance (COP) was determined by using low pressure of refrigerant toconstant at 50 psi and 3 ranges of high pressure i.e. 190-220 psi, 220-250 psi and 250-280psi. The COPRef were 4.02, 3.13 and 2.8, respectively and electric power consumption was0.46, 1.12 and 2.17 kW/h, respectively. The results showed that the high pressure ofrefrigerant at 190-220 psi was the optimum pressure while the average temperature and RH were 14.95?0.55 ํC and 45.81?0.82 %RH. This prototype of cold room for seed storage could reduce machine cost, save energy for the dehumidifier system, and be easily transported. Therefore, this cold room is suitable for community enterprises, agricultural cooperatives and private sectors, where high quality seed production and cost reduction are required. |
